JPH07131857A - Digital radio adapter device - Google Patents

Abstract

PURPOSE:To preferentially process an access request from a specific mobile station when access requests from plural mobile stations conflict with one another. CONSTITUTION:The control part of the TDMA/TDD CPU 17 of the digital radio adapter device 10 of a base station when receiving an access request from the digital radio adapter device 30 of the mobile station enables access requests from other mobile stations to be accepted for a certain time, thereby the reception order of the access requests accepted within the certain time by the resource management part of a user CPU 18 is assigned based on a predetermined process rule or priority order determined for every mobile station.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital wireless adapter device such as a personal handy phone (PHP) for wirelessly transmitting and receiving data between a base station and a mobile station.

[0002]

2. Description of the Related Art In recent years, a communication system has been widely used in which various data are wirelessly transmitted and received between a base station and each mobile station by using a digital wireless adapter device provided in each of the base station and a plurality of mobile stations. . For example, an I / O device such as a printer or a modem is connected to the base station side, and a plurality of mobile stations use the I / O device by sharing it.

Conventionally, in a digital wireless adapter device used in such a communication system, when a plurality of mobile stations simultaneously make access requests to the base station, if the digital wireless adapter device on the base station side has a buffering function, I / I in the order in which the buffering of data from the mobile station is completed
I was able to access the O device. If there is no buffering function, I / O is performed on a first-come, first-served basis of access requests.
I was able to access the device.

[0004]

However, in the above-mentioned conventional digital wireless adapter device, particularly in the digital wireless adapter device having no buffering function, when there is an access request from each mobile station, the access request is received. Since the request is received on a first-come-first-served basis and the access request is processed, even if there are access requests from a plurality of mobile stations, it is possible to preferentially process the access request from a specific mobile station regardless of the first-come-first-served basis. There was a problem that I could not.

Further, when a plurality of mobile stations simultaneously access the base station, the access requests compete with each other, and the one that wins the competition is accepted first, but the processing for the access request is completed. After that, since the access right conflicts again, if the competition is lost, the access request will not be accepted, and the usage right of the I / O device cannot be acquired forever, and the processing may be extremely delayed. There was also.

The present invention has been made in view of the above points, and is a station that receives access requests from a plurality of stations when data is transmitted and received between the stations, and a specific station is selected from the access requests. The purpose is to enable priority processing of access requests of. Further, it is also an object to prevent processing from being occupied by an access request from the same station in a station that has received the access request.

[0007]

In order to achieve the above object, the present invention is a digital wireless adapter device for wirelessly transmitting and receiving data to and from another station, when an access request is received from the other station. A means that can accept access requests from other stations for a certain period of time,
A means for allocating an access request acceptance order to each access request received within the above-mentioned fixed time based on a predetermined processing rule is provided.

Alternatively, there may be provided means for allocating an access request acceptance order to each access request accepted within the above-mentioned fixed time based on a predetermined priority of each other station.

Further, a means for adding an access request time to each access request received within the fixed time, and a reception order of the received access requests based on the access request time added by the means. A means for allocating may be provided.

[0010]

The digital wireless adapter device according to the present invention comprises:
When an access request is received from another station, access requests from other stations can be accepted for a certain period of time, and each access request received within the certain period of time is processed based on a predetermined processing rule. Since the acceptance order is assigned, it is possible to sequentially accept access requests from a plurality of stations received within a fixed time by the station that receives the access request, according to a predetermined processing rule.

Alternatively, if the access request acceptance order is assigned to each access request received within a fixed time based on a predetermined priority of each other station, the station receiving the access request It is possible to sequentially receive access requests from a plurality of stations accepted within a fixed time in accordance with a predetermined priority order for each station.

Further, if the access request time is added to each access request received within a fixed time, and the order of acceptance of the received access requests is assigned based on the added access request time, It is possible to sequentially accept access requests from a plurality of stations received within a fixed time by the station receiving the access request, according to the access request time.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 2 is a diagram showing a configuration example of a communication system using a digital wireless adapter device according to an embodiment of the present invention. In this communication system, one base station (also referred to as a cell station: CS) 1 supports data transmission / reception to / from a plurality of mobile stations (also referred to as a personal station: PS) 2 by wireless communication.

The base station 1 is a digital wireless adapter device 10.
The digital wireless adapter device 10 includes a printer of dot system, thermal system, laser system or the like via a cable 21 and an input / output (I / O) device 20 such as a modem of a data modulator / demodulator. Connected with. A public line network 22 such as a telephone line and a communication line network such as a local area network (LAN) not shown are also connected.

On the other hand, each mobile station 2 also has a digital wireless adapter device 30 having the same function as that of the digital wireless adapter device 10 of the base station 1, but having the same function.
A host PC (personal computer) 4 such as a personal computer or a workstation is connected to the digital wireless adapter device 30 via a cable 41.
0 is connected.

Since the base station 1 can simultaneously service the access requests from a plurality of mobile stations 2 by the number of I / O devices 20 at the maximum, the I / O devices from each mobile station 2 simultaneously. When there are more access requests than the number of O-devices 20, some mobile stations 2 are put on hold. In such a case, the access request of a particular mobile station 2 among them is preferentially processed, or each mobile station is processed. The two access requests can be accepted in order.

The basic external configuration of the digital wireless adapter device 10, 30 is the LCD panel 11, 31 for display.
And LEDs 12, 32, mode setting key switches 13, 33, antennas 14, 34 and the like.

FIG. 1 is a block diagram showing the internal structure of the digital wireless adapter devices 10 and 30 of this embodiment shown in FIG. This digital wireless adapter device 10 and 30
Have the same configuration, therefore, for convenience sake, different reference numerals of both parts are shown together in each part of one drawing.

The inside of this digital wireless adapter device is
It has two CPU configurations, a CPU that processes a wireless protocol of a lower layer and a CPU that processes a user unit. These adopt a personal handy phone (PHP) time division multiplex system. The processing relating to the allocation of the access order of the access request according to the present invention is performed by the processing of the lower layer and the upper layer.

The digital wireless adapter devices 10 and 3
0 is the LCD panel 11, 31 and the LED 12, 32
, Key switches (KEY SW) 13, 33, antennas 14, 34, and radio frequency (RF) units 15, 35.
And a modem (MODEM) unit 16, 36, and a CPU 1 for time division multiple access / time division duplex system (TDMA / TDD)
7, 37 and user CPUs 18, 38, etc.

The LCD panels 11 and 31 are LCD displays for displaying various information such as data transmission / reception errors, set modes, and the like by characters and patterns. The LEDs 12 and 32 are lamps such as light emitting diodes for notifying by turning on various information such as data transmission / reception errors and set modes. In addition,
The LED has good visibility, and the LCD has an advantage that a more detailed state can be displayed.

The key switches 13 and 33 are operation units for setting a mode and instructing data transmission. Antenna 1
Reference numerals 4 and 34 denote members that radiate and absorb radio waves of data. The radio frequency (RF) units 15 and 35 are connected to the antenna 1
Control processing for transmitting and receiving radio frequency through 4, 34 is performed. The modem (MODEM) units 16 and 36 have a function of modulating and demodulating analog data and digital data.

The TDMA / TDD CPUs 17 and 37 are
A microcomputer also provided with a ROM, a RAM, etc., which receives a process relating to a lower layer wireless protocol for transmitting and receiving data by a time division multiplex system and an access request from the mobile station 2 according to the present invention. Occasionally, a process of accepting access requests from other mobile stations 2 for a certain period of time, and a process of adding access times to all the received access requests including the access request first accepted within the certain period of time. Performs the function of a control unit that performs the like.

The user CPUs 18, 38 are also ROM, R
A microcomputer that also includes an AM, etc., and performs access based on a predetermined processing rule for processing related to transmission of various data to other stations and a plurality of access requests received within a certain time according to the present invention A process of allocating the order of acceptance of requests, a process of allocating the order of acceptance of access requests based on a predetermined priority for each mobile station 2, or a process of allocating the order of acceptance of access requests based on access request time. Performs the function of the resource management department.

FIG. 3 shows digital wireless adapter devices 10 and 3.
It is explanatory drawing which shows the basic structure of the control sequence signal between 0 and. A link channel establishment phase, which is a phase for establishing a handshake in a wireless section, and a handshake between the digital wireless adapter devices 10 and 30 by a wireless protocol between respective layers (layers) L1, L2, and L3. Of a service channel establishment phase, which is a phase in which a call connection is established between the base station (CS) 1 and the mobile station (PS) 2 in which communication is established, and a communication phase in which communication and data transmission are performed. There is a protocol phase. The layer is an open system interconnection (OS) of the International Standards Organization (ISO).
2 shows a set of functions in the communication procedure defined by I).

Then, the digital wireless adapter device 10 of the base station 1 performs the access request (link channel) from the digital wireless adapter device 30 of each mobile station 2 in the link channel establishment phase by each unit having the above-described configuration. Processing from receiving the establishment request) to assigning the acceptance order to each access request (link channel) is performed.

First, the processing of the normal link channel establishment phase will be described. FIG. 4 is an explanatory diagram of various blocks in the flowchart shown below. (A) in the figure
Is a block showing the status, and (b) and (c) are TDMA / TD.
D CPU 17,37 control unit and user CPU 18,
A block showing primitives from the resource manager of 38,
(D) and (e) are blocks showing primitives to the control unit of the TDMA / TDD CPUs 17 and 37.

Further, (f) is a block showing a message from the mobile station (PS) 2 on the base station (CS) 1 side,
(G) is a block showing a message from CS on the PS2 side, (h) is a block showing a message to the mobile station (PS) 2 on the base station (CS) 1 side, and (i) is P.
It is a block showing a message to the CS in S2.

Further, (j) is a block indicating a procedure call, (k) is a block indicating information saving,
(L) is a block showing judgment (judgment), and (m) is a block showing selection.

5 to 7 are flowcharts showing the processing of the link channel establishment phase on the base station (CS) 1 side. First, as shown in FIG. 5, the digital wireless adapter device 10 of CS1 receives a link channel establishment request or re-request message from the mobile station (PS) 2 in step 1 (indicated by “S” in the drawing) from the standby state. If there is, in step 2, a primitive for displaying a link channel establishment request is performed to the control unit of the TDMA / TDD CPU 17, and a link channel request acceptance state is set.

If there is an incoming call transmission request primitive in step 3 from the standby state, PS2 in step 4
Incoming call message is sent to timer TR in step 5.
A procedure call for starting 301C is made, and a standby state is set. Further, when the procedure call for the expiration of the timer TR301C is performed in step 6 from the standby state, the primitive of displaying the unanswered response is sent to the control unit in step 7 and the standby state is set.

Furthermore, from the standby state, step 8
When the TCH activation request primitive is performed in step S9, a procedure call for starting the timer TR102C is performed in step 9, and the uplink synchronous burst wait 1 state is set, and a new channel is established.

FIG. 6 is a flow chart showing the subsequent processing from the link channel request acceptance state shown in FIG. As shown in FIG. 6, when a link channel allocation request primitive is made in step 10 from the link channel request acceptance state, a link channel allocation message is sent to PS2 in step 11, and a procedure call for starting timer TR101C is executed in step 12. Then, the link channel allocation state is set.

When a link channel assignment refusal request primitive is made in step 13 from the link channel request acceptance state, a link channel assignment refusal request message is sent to PS2 in step 14 to enter the standby state.

FIG. 7 is a flowchart showing the subsequent processing from the link channel allocation state in the flowchart shown in FIG. In this process, the synchronization establishment display primitive is performed in step 15 from the link channel allocation state.
In step 16, the synchronization establishment display primitive is performed to the control unit of the TDMA / TDD CPU 17, and step 17
When the procedure for stopping the timer TR101C is called at, the TCH is activated.

When the timer TR101C is expired in step 18 from the link channel allocation state, the synchronization establishment failure indication primitive is sent to the control unit in step 19, and the TCH stop procedure is called in step 20, waiting Put in a state.

Therefore, the link channel is established by the flow of TCH activation from the standby state to the service channel establishment phase. In the digital wireless adapter devices 10 and 30, the control carrier used exclusively for control and the other communication carriers for voice and data communication are frequency-mapped.
The link channel establishment phase uses a control carrier.

Then, when the digital wireless adapter device 10 of the base station (CS) 1 receives the link channel establishment (access) request from the digital wireless adapter device 30 of the mobile station (PS) 2, for a certain period of time, By waiting for a link channel establishment request from another mobile station (PS) 2, access requests from a plurality of PS 2 are accepted.

FIGS. 8 and 9 are flowcharts showing the processing of the digital wireless adapter device 10 on the CS1 side according to the present invention in the link channel establishment phase. First, FIG.
As shown in FIG. 11, the primitive of the link channel establishment request is accepted from the mobile station (PS) 2 in step 21 from the standby state.

Then, in step 22, TDMA / TDD
The control unit of the CPU 17 for use makes a primitive for notifying the resource management unit of the CPU 18 for the user of the display of the link channel establishment request, and registers the access request. Then, in step 23, the control unit calls a procedure for starting an access request acceptance waiting timer and enters a link channel request waiting state.

FIG. 9 is a flow chart showing the subsequent processing from the link channel request waiting state in the flow chart shown in FIG. In this process, if there is a link channel allocation refusal request primitive in step 24 from the link channel request waiting state, a link channel allocation refusal message is sent to the PS in step 25 and the standby state is set.

When a link channel establishment request message is input from another PS2 in step 26 in the link channel request waiting state, TDMA /
A primitive for displaying a link channel establishment request is performed to the control unit of the TDD CPU 17 and similarly notified, and a link channel request waiting state is set.

Further, when the primitive for which the access request acceptance waiting timer expires is made in step 28 from the link channel request waiting state, TD is set in step 29.
From the control unit of the MA / TDD CPU 17 to the user CPU
A primitive of a link channel allocation request is made to the resource manager of 18.

Then, in step 30, the resource management unit receives the link channel allocation message and allocates the access request acceptance order based on a predetermined processing rule, and allocates the selected PS2 link channel. To the control unit, and at step 31, timer TR1
A procedure call starting 01C is made to enter the link channel allocation state.

In this way, when an access request is received from the mobile station 2 in the standby state, the request acceptance waiting timer is started so that access requests from other stations can be accepted for a certain period of time. Then, the access order is assigned to the access requests made within the certain time period based on a predetermined processing rule.

FIG. 10 is a flow chart showing the processing subsequent to the link channel allocation state in the flow chart shown in FIG. In this process, when a synchronization establishment indication primitive is given in step 32 from the link channel allocation state, a synchronization establishment indication primitive is given to the control section in step 33, and a procedure for stopping the timer TR101C is called in step 34 to activate the TCH. To

If the timer TR101C expires in step 35 from the link channel allocation state, the digital wireless adapter device 10 on the CS1 side allocates the link channel, and for some reason the synchronization with PS2 is not established. Then, in step 36, the primitive for the synchronization establishment unsuccessful is displayed, and the TDMA / TDD CP is sent.
The control unit of U17 notifies the resource management unit of the CPU 18 for the user to call the procedure for stopping the TCH in step 37.

After that, in step 38, the resource management unit judges whether or not the access request has been received in the table, and if it has not been received, the standby state is set. On the other hand, if it has been accepted, a link channel allocation request primitive is performed in step 39, and P in step 40.
A message for allocating the link channel is sent to S2, and at step 41, a procedure call for starting the timer TR101C is made to enter the link channel allocation state.

Next, the processing of the resource management unit of the user CPU 18 of the digital wireless adapter device 10 of the base station (CS) 1 will be described. The user CPU 18 of the digital wireless adapter device 10 is the TDMA / TDD CPU 17
The access request of each mobile station (PS) 2 received from the device is registered in the table, and a time stamp indicating the access request time is added.

This time stamp may record the access time of the access request (access request time) so that the order of receiving the access requests received from the mobile station can be known. However, in order to simplify the processing here, The same number (No) is assigned to the access request received while waiting for the link channel request within one fixed time.

Table 1 is a table showing a format example when a time stamp is added to an access request received from a mobile station and stored in the table. For example, when storing for eight mobile stations (PS) 2, an access request acceptance order is added to each PS number.

In this example, a reception order "1" is added to each access request from the mobile stations with PS numbers, and these are accepted while waiting for a link channel request within the same fixed time. , Has been registered in the table.

[0053]

[Table 1]

Also, the access request acceptance order "2" is registered in the PS number, which indicates that the access request is accepted and registered in the link channel request waiting state within the next fixed time. Furthermore, the access request acceptance order "3" is registered in the PS number, and it is indicated that the access request acceptance order "3" is accepted and registered in the link channel request waiting state within the next fixed time. The PS number indicates that there is no access request, or that the processing has been completed and cleared to 0.

Next, access request allocation by the resource management unit will be described. (1) The order of acceptance of the access requests accepted is assigned according to the priority order determined for each mobile station (PS) 2. That is, the priority order of access request processing is determined in advance for each PS2, the priority order for each PS is registered in the table, and the order of acceptance of a plurality of access requests received within a fixed time is assigned according to the priority order.

Table 2 is a table showing an example of registration of priorities for 8 PSs. For example, PS numbers, ...
Priority levels “5”, “7”, “6”, “1”, “8”, “2”, “3” and “4” are registered for the mobile stations of ,,,, respectively.

[0057]

[Table 2]

For example, when the acceptance order is assigned to the access requests shown in Table 1, they are assigned according to the priority order shown in Table 2. Although the PS numbers, ..., Received access within the same fixed time, according to the priority order of Table 2,
The access request acceptance order is assigned in the order of number.

In addition, for example, when the mobile station with the PS number is given the highest priority, and when the acceptance order is assigned to the access requests shown in Table 1, there is another PS with the faster access request time. , The access request acceptance order is first assigned to the access request from the mobile station of this PS number.

(2) The order of acceptance of access requests is assigned based on the access request time. In this case, PS2 of each access request registered in the table in the waiting state for the link channel within the same fixed time is set as one group, and P2
The acceptance order is assigned to the access requests of all PS2s in the S group, the entire processing is performed, and then the next PS
The acceptance order is assigned to the access request of each PS in the group.

For example, when assigning an acceptance order to each access request shown in Table 1, first, the PS number ,,
The access order of each mobile station of PS number is assigned, the acceptance order is assigned to the access request of each mobile station of PS number, and the acceptance order is assigned to the access request of each mobile station of PS number. .

In this manner, until the PS groups registered in the link channel request waiting state at the same time are all processed, the PS groups registered at the next time are not processed. It is possible to eliminate PS, which is lost due to competition and whose processing is extremely delayed.

Next, FIGS. 11 to 13 show mobile stations (PS).
It is a flowchart which shows the process of the link channel establishment phase of the digital wireless adapter device 30 of the 2nd side. First, as shown in FIG. 11, step 4 is performed from the standby state.
When there is a link channel establishment request primitive in 2,
In step 43, a message for requesting establishment of a link channel is sent to CS1, and in step 44, a procedure for starting timer TR001P is called to set a call link channel request state.

In the standby state, at step 45, C
When there is an incoming call message from S1, T is set in step 46.
The primitive of the incoming call display is performed to the control unit of the DMA / TDD CPU 37, and the incoming call state is set.

FIG. 12 is a flow chart showing the processing continued from the calling link channel request state shown in FIG.
3 is a flowchart showing the continuation thereof. In this process, as shown in FIG. 12, when there is a link channel allocation message from CS1 in step 47 from the calling link channel request, in step 48 the TDMA / TDD CP is sent.
A link channel assignment indication primitive is sent to the control unit of U37.

Thereafter, in step 49, the timer TR001
The procedure of P stop is called, the procedure of U wave measurement is called in step 50, and the process proceeds to step 59 shown in FIG. In step 59, it is determined whether or not there is a U wave, and if there is a U wave, a procedure call for starting the timer TR101P is called in step 64, and a calling link channel allocation state is set.

If there is no U wave, then in step 60 TDM
The U wave detection display primitive is sent to the control section of the A / TDD CPU 37, and it is judged in step 61 whether or not a retry is possible. If the retry is possible, a message for requesting link channel establishment is sent to CS1 in step 62. 63
Call the procedure to start the timer TR001P with
Put the outgoing link channel in the re-request state On the other hand, if the retry is not possible in the judgment of step 61, the primitive of LCH establishment unsuccessful indication is given to the control unit in step 65 and the standby state is set.

Further, if there is a message from the CS1 of refusal of link channel allocation in step 51 from the calling link channel request state shown in FIG. 12, TDM is executed in step 52.
A link channel allocation refusal display primitive is sent to the control unit of the A / TDD CPU 37, and at step 53, a timer T
Call the procedure for stopping R001P to enter the standby state.

Further, if there is a primitive of timer TR001P expiration in step 54 from the calling link channel request state, it is judged in step 55 whether or not retry is possible, and if retry is possible, in step 56 a link channel establishment request is sent to CS1. A message is sent, and in step 57, a procedure call for starting the timer TR001P is made, and the calling link channel request state is set.

On the other hand, if it is judged in the step 55 that the retry is not possible, the C for TDMA / TDD is used in the step 58.
The primitive of LCH establishment unsuccessful indication is given to the control unit of the PU 37, and the unit is put in a standby state. In this way, the link channel is established in the flow from the waiting state to the call link channel allocation.

Next, FIGS. 14 and 15 are flow charts showing the processing of the PS2 side digital wireless adapter device 30 according to the present invention in the link channel establishment phase.
First, as shown in FIG. 14, when there is a link channel establishment request primitive from the standby state in step 66, a link channel establishment request message is sent to CS1 in step 67, and a timer TR001 is sent in step 68.
A P-initiated procedure call is made and a call link channel request state is set.

In the standby state, in step 69, C
When a link channel allocation message is sent to S1, it is determined in step 70 whether or not there is a link establishment request. If there is no link establishment request, the standby state is entered. If there is, a link channel is sent to the control unit of the TDMA / TDD CPU 37 in step 71. The primitive for allocation display is performed, the procedure for U-wave measurement is called in step 72, and the process proceeds to step 59 in the flowchart shown in FIG.

FIG. 15 is a flow chart showing the processing continued from the calling ring channel request state shown in FIG. In this process, if there is a primitive whose timer TR001P has expired in step 73 from the calling link channel request, it is determined whether or not to retry in step 74, and if retry is performed, a link channel establishment request message is sent to CS1 in step 75. Then, in step 76, the procedure call for starting the timer TR001P is performed, and the calling link channel request state is set.

If it is not retried in the judgment of step 74, a primitive of LCH establishment unsuccessful indication is given to the control section of the TDMA / TDD CPU 37 in step 77.
Put it in standby mode.

Further explaining this processing, CS
Even if the link establishment request is issued to the digital wireless adapter device 10 on the first side, if the link channel is not allocated until the timer TR001P expires, the LCH establishment fails. At this time, in the resource management section of the user CPU 38 of the digital wireless adapter device 30 on the PS2 side,
Waiting for the next chance, after a certain period of time, a timer for making an access request again is started.

When the link channel assignment is received from the digital wireless adapter device 10 on the CS1 side,
TDMA / of the digital wireless adapter device 30 on the PS2 side
The control unit of the TDD CPU 37 inquires of the resource management unit of the user CPU 38 whether or not there is a link establishment request. If there is a request, the link channel allocation display is performed and the U wave measurement is continued.

In this way, even if the link channel allocation is delayed by the access request allocation processing on the CS1 side, if the link channel establishment request is on the PS2 side, the link channel can be established.

Next, the effects of the digital wireless adapter device of this embodiment will be listed. (1) When an access request from a mobile station is accepted, by accepting requests from other mobile stations within a fixed time,
When competing, requests from a plurality of mobile stations can be fetched, and complicated handling can be performed by processing procedures and the like.

(2) When an access request from a mobile station is accepted, a request from another mobile station is accepted within a certain period of time, and the requests are processed in a predetermined priority order to move within the system. Allows management of priority processing of stations.

(3) When an access request from a mobile station is accepted, requests from other mobile stations are accepted within a certain period of time, a table relating to the plurality of access requests is created, and the processing order is determined. It is possible to provide uniform service within the system without concentrating access to the same mobile station.

(4) By using such a digital wireless adapter device, a plurality of users can share a common I / O in an office or the like.
If you create an environment to share O devices,
There is an advantage that various users can be set, such as deciding users who can use the I / O device, allowing all users to access the I / O device evenly.

[0082]

As described above, according to the digital wireless adapter device of the present invention, when an access request is received from another station, access requests from other stations can be accepted for a certain period of time, and the fixed request can be received. Since the access request acceptance order is assigned to each access request received within the time based on a predetermined processing rule, access requests from a plurality of stations received within a certain time are processed according to a predetermined processing rule. Can be accepted in order.

Alternatively, if the order of acceptance of access requests is assigned to each access request accepted within a fixed time based on a predetermined priority of each other station, a plurality of accepted requests within a fixed time can be obtained. Access requests from the stations can be accepted in order according to a predetermined priority for each station. Therefore, an access request from a specific mobile station can be preferentially processed regardless of the order of arrival.

Further, if the access request time is added to each access request received within a fixed time, and the acceptance order of the received access requests is assigned based on the added access request time, It is possible to sequentially receive access requests from a plurality of stations that have been received within a fixed time, according to the access request time.

Therefore, it is possible to prevent the mobile station from being occupied by only the access request of the same mobile station, and it is possible to prevent the specific mobile station from acquiring the right to use the I / O device forever and thus delaying the processing extremely. .

[Brief description of drawings]

FIG. 1 is a block diagram showing an internal configuration of digital wireless adapter devices 10 and 30 according to an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration example of a communication system using a digital wireless adapter device according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram showing a basic structure of a control sequence signal between the digital wireless adapter devices 10 and 30.

FIG. 4 is an explanatory diagram of various blocks described in the flowcharts shown in FIGS. 5 to 15.

FIG. 5 is a flowchart showing processing of a link channel establishment phase of the digital wireless adapter device 10 on the base station (CS) 1 side.

FIG. 6 is a flowchart showing a process subsequent to the link channel request acceptance state of FIG.

FIG. 7 is a flowchart showing processing subsequent to the link channel allocation state of FIG.

FIG. 8 is a flowchart showing processing of the CS1 side digital wireless adapter device 10 according to the present invention in the link channel establishment phase.

FIG. 9 is a flowchart showing processing that continues from the link channel request waiting state shown in FIG. 8;

FIG. 10 is a flowchart showing processing subsequent to the link channel allocation state of FIG.

FIG. 11 is a flowchart showing a process of a link channel establishment phase of the digital wireless adapter device 30 on the mobile station (PS) 2 side.

FIG. 12 is a flowchart showing a continuation of the calling link channel request state shown in FIG. 11;

FIG. 13 is a flowchart showing the subsequent processing.

FIG. 14 is a flowchart showing the processing of the digital wireless adapter device 30 on the PS2 side according to the present invention in the link channel establishment phase.

FIG. 15 is a flowchart showing processing that continues from the calling link channel request state shown in FIG. 14;

[Explanation of symbols]

1: Base station 2: Mobile station 10, 30: Digital wireless adapter 10 11, 31: LCD panel 12, 32: LED 13, 33: Key switch (KEY SW) 14, 34: Antenna 22: Public line network 15, 35: radio frequency (RF) section 16, 36: modem (MODEM) section 17, 37: time division multiple access / time division duplex (TDMA /
CPU for TDD) 18,38: CPU for user 21,41: Cable 20: Input / output (I / O) device 40: Host PC (personal computer)

Claims (3)

[Claims] 1. A digital wireless adapter device for wirelessly transmitting / receiving data to / from another station, when an access request is received from a certain other station, access requests from other stations can be accepted for a certain period of time. A digital wireless adapter device comprising means and means for allocating an access request acceptance order based on a predetermined processing rule to each access request received within the fixed time. 2. A digital wireless adapter device for wirelessly transmitting and receiving data to and from another station, when an access request is received from a certain other station, access requests from other stations can be accepted for a certain period of time. Means and a means for allocating an access request reception order based on a predetermined priority of each other station for each access request received within the fixed time. apparatus. 3. A digital wireless adapter device for wirelessly transmitting / receiving data to / from another station, when an access request is received from a certain other station, access requests from other stations can be accepted for a certain period of time. Means, means for adding an access request time to each access request received within the fixed time, and means for allocating an acceptance order of the received access requests based on the access request time added by the means And a digital wireless adapter device.